package com.hmdp.interceptor;

import cn.hutool.core.bean.BeanUtil;
import com.hmdp.dto.UserDTO;
import com.hmdp.utils.UserHolder;
import org.apache.logging.log4j.util.Strings;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;
import java.util.concurrent.TimeUnit;

public class RefreshTokenInterceptor implements HandlerInterceptor {
    private StringRedisTemplate stringRedisTemplate;
    public RefreshTokenInterceptor(StringRedisTemplate stringRedisTemplate) {
        this.stringRedisTemplate = stringRedisTemplate;
    }
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String token = request.getHeader("authorization");
        if(Strings.isBlank(token)) {
            return true;
        }
        String key="login:token:"+token;
        Map<Object, Object> userMap = stringRedisTemplate.opsForHash().entries(key);
        if(userMap.isEmpty()){
            return true;
        }
        UserDTO user = BeanUtil.fillBeanWithMap(userMap,new UserDTO(),false);
        UserHolder.saveUser(user);
        //测试需要，先注释掉这个
//        stringRedisTemplate.expire(key,30, TimeUnit.MINUTES);
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        UserHolder.removeUser();
    }
}
